CN102030029A - Energy-absorbing steering tubular column - Google Patents
Energy-absorbing steering tubular column Download PDFInfo
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- CN102030029A CN102030029A CN 201010568682 CN201010568682A CN102030029A CN 102030029 A CN102030029 A CN 102030029A CN 201010568682 CN201010568682 CN 201010568682 CN 201010568682 A CN201010568682 A CN 201010568682A CN 102030029 A CN102030029 A CN 102030029A
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- damping
- described upper
- column
- steering shaft
- steering
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- 238000013016 damping Methods 0.000 claims abstract description 96
- 238000001746 injection moulding Methods 0.000 claims description 15
- 238000010521 absorption reaction Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention discloses an energy-absorbing steering tubular column, which belongs to the field of automobiles. The steering tubular column comprises an upper column tube, a lower column tube, an upper steering shaft, a lower steering shaft, an upper mounting bracket, a lower mounting bracket and a damping device. Through the damping device, energy is absorbed by secondary crumpling of the steering tubular column to reduce collision peak force; when secondary collision takes place, an upper steering shaft assembly and a lower steering shaft assembly slide relative to each other, and the air in the lower steering shaft is compressed and overflowed out of constant flow holes in an upper damping ring and a lower damping ring, so energy is effectively absorbed in the entire crumpling process, the time for acting collision force on a human body is prolonged, and the safety of a driver is protected.
Description
Technical field
The invention belongs to automotive field, particularly a kind of energy-absorption type steering column.
Background technology
Steering column is the important component part of the steering control mechanism of automobile steering system, and it changes or recover the travel direction of automobile with other mechanisms.
Along with the customer requires to increase to the collision safety of automobile; each main engine plants is also more and more higher to the requirement of passive security technology when automobile design; demand based on protection driver in the collision; generally adopt the energy-absorption type steering column at present; to ensure that steering column is when collision is compressed; bearing circle displacement backward must not surpass 127mm, and when guaranteeing secondary collision simultaneously, bearing circle is no more than 11123N to the impact force of chaufeur chest.
As shown in Figure 6, the energy-absorption type steering column comprises upper and lower column jecket 1-2,1-8, upper and lower steering shaft 1-3,1-7, and upper and lower mounting bracket 1-6,1-9.Wherein, by the same axle mounting of spline, and fix between last steering shaft 1-3 and the following steering shaft 1-7 by the injection moulding pin.Last steering shaft 1-3 is installed among the column jecket 1-3 by head bearing 1-1.Following steering shaft 1-7 is installed in down among the column jecket 1-8 by lower bearing 1-10.Last mounting bracket 1-6 is fixedly mounting cast aluminium by injection moulding pin 1-5 and is pulling piece 1-4, and cast aluminium pulls piece 1-4 by being bolted on the dashboard cross member support.
When automobile bumps, the driver is equidirectional dish bump under the effect of self inertia, impact is delivered to steering shaft 1-5, when application force reaches certain numerical value, by shearing disconnected injection moulding pin 1-5, can disconnect and pulling being connected of piece 1-4 and last mounting bracket 1-6, steering column is thrown off with vehicle body, increase along with application force, on, following steering shaft 1-3, the injection moulding pin of 1-7 also is sheared disconnected, this moment is by last, following steering shaft 1-3, the part impact is eliminated in the friction of the slide relative between the 1-7, by last, following steering shaft 1-3, bearing circle displacement backward guaranteed the requirement less than 127mm when the relative shift between the 1-7 reduced the collision compression.
In realizing process of the present invention, the contriver finds that there is following problem at least in prior art:
Be subjected to the structural limitations of present energy-absorption type steering column; steering column mainly is to realize energy-absorbing by the pressure-riveting process of upper and lower column jecket; absorb collision energy and mainly rely on friction force consumption; the finite energy that consumes; can't be with the small range that is controlled at of crumple power; can't guarantee steering-column tube secondary crumple energy-absorbing, most Impact energy is still absorbed by chaufeur self, can not form good protection to the chaufeur health.
Summary of the invention
In order to overcome the finite energy that energy-absorption type steering column structure of the prior art consumes; can't guarantee steering-column tube secondary crumple energy-absorbing; make most Impact energy be absorbed by chaufeur self; cause to form the problem of good protection to the chaufeur health; the embodiment of the invention provides a kind of energy-absorption type steering column; can effectively absorb energy, prolong the time that impact force acts on human body, protection driver safety.Described technical scheme is as follows:
A kind of energy-absorption type steering column, comprise, following column jecket, on, following steering shaft, and on, following mounting bracket, wherein, last steering shaft is fixed with axle mounting and by the injection moulding pin with following steering shaft, on, following steering shaft is installed in respectively by bearing separately, in the following column jecket, on, following column jecket is respectively with last, following mounting bracket captive joint, last mounting bracket is fixedly mounting by the injection moulding pin and is pulling piece, pull piece by on the overarm brace that is bolted to Automobile instrument, described steering column comprises that also one is separately positioned on described, damping arrangement in the following column jecket, described damping arrangement are used for whole crumple energy-absorbing.
Particularly, described damping arrangement comprises the upper and lower damping ring that is separately positioned on the flexibility in the described upper and lower column jecket, described upper and lower damping ring respectively with described upper and lower steering shaft interference fit, described upper and lower damping ring is the location division axial location by described upper and lower column jecket respectively, be equipped with the permanent current hole in the described upper and lower damping ring, described upper and lower damping ring and described upper and lower column jecket and described upper and lower steering shaft form damping cavity.
Further, in order to reach energy-absorbing step by step, all establish damping hole in the described upper and lower damping ring, described damping hole is up-small and down-big hole.
Further, in order to reach good energy-absorbing effect, described permanent current hole in the described upper and lower damping ring and described damping hole are a plurality of, and uniform along the center of described upper and lower damping ring respectively.
Further, in order to reach better energy-absorbing effect, described described permanent current hole and the described damping hole of going up in the damping ring is arranged on the different circumference, and is rule setting at interval.
Further, in order to reach better energy-absorbing effect, described permanent current hole and described damping hole in the described damping ring down are arranged on the identical circumference, and are rule setting at interval.
Particularly, as preferably, the location division of described upper and lower column jecket is arranged on described upper and lower column jecket in-to-in step for being respectively.
Particularly, as preferably, the location division of described upper and lower column jecket is to be respectively the undergauge that is arranged in the described upper and lower column jecket.
Particularly, as preferably, described steering shaft and the following steering shaft gone up is by the same axle mounting of spline.
Particularly, as preferably, described upper and lower damping ring all adopts rubber to make.
The beneficial effect that the technical scheme that the embodiment of the invention provides is brought is: compared to existing technology; the embodiment of the invention is by increasing a damping arrangement in upper and lower column jecket; be implemented in whole crumple energy-absorbing by damping arrangement; to reduce the collision peak force; when secondary collision; slide relative between last steering shaft assembly and the following steering shaft assembly; air in the following steering shaft is compressed; overflow in the air damping device; be implemented in effective energy-absorbing of whole crumple; prolong the time that impact force acts on human body, protection driver safety.
Description of drawings
Fig. 1 is the integral structure cutaway view of the energy-absorption type steering column that provides of the embodiment of the invention;
Fig. 2 is the front view of the last damping ring that provides of the embodiment of the invention;
Fig. 3 is the A-A cutaway view of Fig. 2;
Fig. 4 is the front view of the following damping ring that provides of the embodiment of the invention;
Fig. 5 is the A-A cutaway view of Fig. 4;
Fig. 6 is the energy-absorbing steering tube column structural representation of prior art.
Among Fig. 1-5: 1 head bearing, column jecket on 2, damping ring on 3, steering shaft on 4,5 pull piece, 6 first injection moulding pins, mounting bracket on 7,8 times steering shafts, 9 times column jeckets, 10 times damping rings, 11 times mounting brackets, 12 lower bearings, 13 second injection moulding pins, 14 first damping holes, 14 ' second damping hole, 15 first permanent current holes, 15 ' the second long discharge orifice;
Among Fig. 6: the 1-1 head bearing, the last column jecket of 1-2, the last steering shaft of 1-3, the 1-4 cast aluminium pulls piece, 1-5 injection moulding pin, the last mounting bracket of 1-6, steering shaft under the 1-7, column jecket under the 1-8, mounting bracket under the 1-9,1-10 lower bearing.
The specific embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of energy-absorption type steering column that the embodiment of the invention provides comprises column jecket 2, following column jecket 9, last steering shaft 4, steering shaft 8 down, and last mounting bracket 7, time mounting bracket 11, and be arranged on damping arrangement in column jecket 2, time column jecket 9.
Wherein, last steering shaft 4 is fixed with axle mounting and by the second injection moulding pin 13 with following steering shaft 8, and last steering shaft 4 is installed in the column jecket 2 by head bearing 1, and following steering shaft 8 is installed in down in the column jecket 9 by lower bearing 12.Last column jecket 2 is captiveed joint with following mounting bracket 11 with last mounting bracket 7 respectively with following column jecket 9.Last mounting bracket 7 is fixedly mounting by the first injection moulding pin 6 and is pulling piece 5, pulls piece 5 by on the overarm brace that is bolted to Automobile instrument.
Described damping arrangement comprises, is separately positioned on the last damping ring 3 and the following damping ring 10 of the flexibility in column jecket 2 and the following column jecket 9.Wherein, last damping ring 3 and following damping ring 10 respectively with last steering shaft 4 and following steering shaft 8 interference fit, and the location division axial location by last column jecket 2 and following column jecket 9 respectively.Be equipped with the permanent current hole in last damping ring 3 and the following damping ring 10, i.e. the first permanent current hole 15 (can referring to Fig. 3) and the second permanent current hole 15 (can referring to Fig. 5).Last damping ring 3, following damping ring 10 reach with last column jecket 2, following column jecket 9 and go up steering shaft 4, following steering shaft 8 forms damping cavity.
Described damping arrangement mainly plays two effects, and the one, when flowing out, pressurized air produces dumping force, go up the relative sliding velocity of lower shaft when colliding so that control, with the control action time; The 2nd, can the decay vibration of column jecket and steering shaft of flexible damping ring.
The embodiment of the invention is by increasing by one group of damping arrangement; be implemented in whole crumple energy-absorbing; to reduce the collision peak force; when secondary collision, slide relative between last steering shaft assembly and the following steering shaft assembly, the air in the following steering shaft is compressed; air overflows in the permanent current hole from upper and lower damping ring; be implemented in effective energy-absorbing of whole crumple, prolong the time that impact force acts on human body, protection driver safety.
Further, in order to reach the effect of good energy-absorbing step by step, as shown in Figure 3, described going up in the damping ring 3 is provided with first damping hole 14, and described first damping hole 14 is up-small and down-big hole.Therefore when energy was very big, first damping hole 14 was that the coniform hole part has distortion, at utmost energy-absorbing.
Further, in order to reach good energy-absorbing effect, as shown in Figure 2, described first permanent current hole 15 in the described upward damping ring 3 and described first damping hole 14 are a plurality of, and uniform along the center of described upward damping ring 3 respectively.
Further, in order to reach better energy-absorbing effect, (also can referring to Fig. 3) as shown in Figure 2, described described first permanent current hole 15 and described first damping hole of going up in the damping ring 3 14 is arranged on the different circumference, and is rule setting at interval.
Further, in order to reach the effect of good energy-absorbing step by step, as shown in Figure 5, describedly establish second damping hole 14 ' in the damping ring 10 down, described second damping hole 14 ' is up-small and down-big hole.Therefore when energy was very big, first damping hole 14 was that the coniform hole part has distortion, at utmost energy-absorbing.
Further, in order to reach good energy-absorbing effect, as shown in Figure 4, described second permanent current hole 15 in the described damping ring 10 down and described second damping hole 14 ' are a plurality of, and uniform along the center of described damping ring 10 down respectively.
Further, in order to reach better energy-absorbing effect, (also can referring to Fig. 3) as shown in Figure 4, described second permanent current hole 15 and described second damping hole 14 ' in the described damping ring 10 down are arranged on the identical circumference, and are rule setting at interval.
Particularly, described go up column jecket 2 and down column jecket 9 the location division for be respectively be arranged on described go up column jecket 2 and under column jecket 9 in-to-in steps.During concrete enforcement, can also adopt undergauge and the structure of packing ring is set.In this example, as shown in Figure 1, the undergauge structure is preferably adopted in described location division of going up column jecket 2, following column jecket 9, has the machining characteristics of convenience.
Particularly, as preferably, described steering shaft 4 and the following steering shaft 8 gone up has the stable transmission advantage by the same axle mounting of spline.
Particularly, as preferably, describedly go up damping ring 3, damping ring 10 all adopts rubber to make down.
Particularly, as preferably, described go up column jecket 2, down column jecket 9 respectively with describedly go up mounting bracket 7, captiveing joint between the mounting bracket 11 is welding down, so have convenient advantage of processing.
Human body rushes at bearing circle during secondary collision under action of inertia, this moment, the energy-absorbing of steering column was extremely important, the endergonic process of the embodiment of the invention in such cases is as follows: referring to Fig. 1, the equidirectional dish of human body comes in contact bearing circle and produces elastic deformation absorption portion energy, when the application force of human body and bearing circle reaches when cutting off the first injection moulding pin 6 that pulls piece 5 places, the piece 5 that pulls that links to each other with dashboard cross member separates with last mounting bracket 7, bearing circle and steering column are finished collision energy-absorbing for the first time like this, increase along with axial force, the second injection moulding pin 13 at steering shaft place is cut off, finish the secondary buffer energy-absorbing, whole like this steering column moves down, at this moment go up mounting bracket 7 and last column jecket 2 together moves down, air in the damping cavity that damping arrangement forms is compressed, a part is by the first permanent current hole 15, the second permanent current hole 15 ' and first damping hole 14, second damping hole 14 ' is discharged, guarantee moving axially of steering-column tube, simultaneously owing to the first uniform damping hole 14 of annular in last damping ring 3 and the following damping ring 10, the existence of second damping hole 14 ', most collision energy is dissipated, energy-absorbing when guaranteeing the tubing string crumple has like this reduced the injury that chaufeur is subjected to.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. energy-absorption type steering column, comprise, following column jecket, on, following steering shaft, and on, following mounting bracket, wherein, last steering shaft is fixed with axle mounting and by the injection moulding pin with following steering shaft, on, following steering shaft is installed in respectively by bearing separately, in the following column jecket, on, following column jecket is respectively with last, following mounting bracket captive joint, last mounting bracket is fixedly mounting by the injection moulding pin and is pulling piece, pulls piece by on the overarm brace that is bolted to Automobile instrument, it is characterized in that, described steering column comprises that also one is separately positioned on described, damping arrangement in the following column jecket, described damping arrangement are used for whole crumple energy-absorbing.
2. steering column as claimed in claim 1, it is characterized in that, described damping arrangement comprises the upper and lower damping ring that is separately positioned on the flexibility in the described upper and lower column jecket, described upper and lower damping ring respectively with described upper and lower steering shaft interference fit, described upper and lower damping ring is the location division axial location by described upper and lower column jecket respectively, be equipped with the permanent current hole in the described upper and lower damping ring, described upper and lower damping ring and described upper and lower column jecket and described upper and lower steering shaft form damping cavity.
3. steering column as claimed in claim 2 is characterized in that, all establishes damping hole in the described upper and lower damping ring, and described damping hole is up-small and down-big hole.
4. steering column as claimed in claim 3 is characterized in that, described permanent current hole in the described upper and lower damping ring and described damping hole are a plurality of, and uniform along the center of described upper and lower damping ring respectively.
5. steering column as claimed in claim 4 is characterized in that, described described permanent current hole and the described damping hole of going up in the damping ring is arranged on the different circumference, and is rule setting at interval.
6. as claim 4 or 5 described steering columns, it is characterized in that described permanent current hole and described damping hole in the described damping ring down are arranged on the identical circumference, and be rule setting at interval.
7. steering column as claimed in claim 2 is characterized in that, the location division of described upper and lower column jecket is arranged on described upper and lower column jecket in-to-in step for being respectively.
8. steering column as claimed in claim 2 is characterized in that, the location division of described upper and lower column jecket is to be respectively the undergauge that is arranged in the described upper and lower column jecket.
9. steering column as claimed in claim 2 is characterized in that, described upward steering shaft and following steering shaft are by the same axle mounting of spline.
10. steering column as claimed in claim 2 is characterized in that, described upper and lower damping ring all adopts rubber to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010568682 CN102030029B (en) | 2010-11-26 | 2010-11-26 | Energy-absorbing steering tubular column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010568682 CN102030029B (en) | 2010-11-26 | 2010-11-26 | Energy-absorbing steering tubular column |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102030029A true CN102030029A (en) | 2011-04-27 |
| CN102030029B CN102030029B (en) | 2013-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010568682 Active CN102030029B (en) | 2010-11-26 | 2010-11-26 | Energy-absorbing steering tubular column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102030029B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104657A (en) * | 2011-11-11 | 2013-05-15 | 北汽福田汽车股份有限公司 | Torsional vibration absorber |
| CN104002854A (en) * | 2014-06-16 | 2014-08-27 | 奇瑞汽车股份有限公司 | Energy absorption automotive steering column assembly |
| CN105752150A (en) * | 2016-02-24 | 2016-07-13 | 北京汽车研究总院有限公司 | Steering column device and automobile |
| CN106004985A (en) * | 2016-05-26 | 2016-10-12 | 奇瑞汽车股份有限公司 | Steering column, steering mechanism and vehicle |
| CN105452087B (en) * | 2013-08-21 | 2017-12-08 | 株式会社捷太格特 | Transfer |
| CN107826004A (en) * | 2017-12-08 | 2018-03-23 | 清华大学苏州汽车研究院（相城） | A kind of lateral side protection and child safety seat for child safety seat |
| CN109080694A (en) * | 2018-06-07 | 2018-12-25 | 奇瑞汽车股份有限公司 | A kind of steering column and steering mechanism, automobile with good crumple characteristic |
| CN111727147A (en) * | 2018-02-19 | 2020-09-29 | 奥迪股份公司 | Steering shaft for a steering system of a motor vehicle, in particular of a passenger vehicle, and motor vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104657A (en) * | 2011-11-11 | 2013-05-15 | 北汽福田汽车股份有限公司 | Torsional vibration absorber |
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| CN107826004A (en) * | 2017-12-08 | 2018-03-23 | 清华大学苏州汽车研究院（相城） | A kind of lateral side protection and child safety seat for child safety seat |
| CN111727147A (en) * | 2018-02-19 | 2020-09-29 | 奥迪股份公司 | Steering shaft for a steering system of a motor vehicle, in particular of a passenger vehicle, and motor vehicle |
| CN111727147B (en) * | 2018-02-19 | 2022-09-13 | 奥迪股份公司 | Steering shaft for a steering system of a motor vehicle, in particular of a passenger vehicle, and motor vehicle |
| US11648975B2 (en) | 2018-02-19 | 2023-05-16 | Audi Ag | Steering shaft for a steering system of a motor vehicle, in particular a passenger car, and motor vehicle |
| CN109080694A (en) * | 2018-06-07 | 2018-12-25 | 奇瑞汽车股份有限公司 | A kind of steering column and steering mechanism, automobile with good crumple characteristic |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102030029B (en) | 2013-06-12 |
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